#![feature(lang_items, start, libc)] #![warn(clippy::box_default)] #![no_std] pub struct NotBox { _value: T, } impl NotBox { pub fn new(value: T) -> Self { Self { _value: value } } } impl Default for NotBox { fn default() -> Self { Self::new(T::default()) } } #[start] fn main(_argc: isize, _argv: *const *const u8) -> isize { let _p = NotBox::new(isize::default()); 0 } #[panic_handler] fn panic(_info: &core::panic::PanicInfo) -> ! { loop {} } #[lang = "eh_personality"] extern "C" fn eh_personality() {}